ChemInform Abstract: Phase-Transfer-Catalyzed Cyclization Reaction of Nucleophilic Addition to Electron-Deficient 1,3-Conjugated Enynes for the Synthesis of Functionalized 4H-Pyrans.

✍ Scribed by Jie Hu; Lei Liu; Shangdong Yang; Yong-Min Liang

• Publisher: John Wiley and Sons
• Year: 2011
• Weight: 34 KB
• Volume: 42
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.201136136

✦ Synopsis

Abstract

Phase‐transfer‐catalyzed nucleophilic addition—cyclization of electron‐deficient 1,3‐conjugated enynes towards 1,3‐dicarbonyl compounds provides access to a wide range of 4H‐pyrans such as (III) and (V).